Ultrafast dynamics of photoexcited gold nanostructures on mica substrates probed by transient absorption spectroscopy and time-resolved x-ray diffraction

Hikaru Sotome; Yosuke Azuma; Sho Asami; Shin Ichi Matsushima; Shinji Kajimoto; Hiroshi Fukumura

doi:10.1246/cl.150232

Ultrafast dynamics of photoexcited gold nanostructures on mica substrates probed by transient absorption spectroscopy and time-resolved x-ray diffraction

Hikaru Sotome, Yosuke Azuma, Sho Asami, Shin Ichi Matsushima, Shinji Kajimoto, Hiroshi Fukumura

PHA - Molecular Pharmaceutical Science

Tohoku University

Research output: Contribution to journal › Article › peer-review

Abstract

Gold nanostructures deposited on mica were excited with 400-nm sub-ps light pulses. Sub-ps transient absorption spectroscopy showed that excited hot electrons in the gold nanostructures decayed with a time constant of 13 ps through electron-phonon coupling in the nanostructures. Sub-ps time-resolved X-ray diffraction revealed that the (0010) mica lattice constant in a 1.7 μm thick surface layer expanded with a time constant of 6 ps.

Original language	English
Pages (from-to)	961-963
Number of pages	3
Journal	Chemistry Letters
Volume	44
Issue number	7
DOIs	https://doi.org/10.1246/cl.150232
Publication status	Published - 2015

Access to Document

10.1246/cl.150232

Cite this

@article{8f51cf9896e3418cb7bb60488b55df4e,

title = "Ultrafast dynamics of photoexcited gold nanostructures on mica substrates probed by transient absorption spectroscopy and time-resolved x-ray diffraction",

abstract = "Gold nanostructures deposited on mica were excited with 400-nm sub-ps light pulses. Sub-ps transient absorption spectroscopy showed that excited hot electrons in the gold nanostructures decayed with a time constant of 13 ps through electron-phonon coupling in the nanostructures. Sub-ps time-resolved X-ray diffraction revealed that the (0010) mica lattice constant in a 1.7 μm thick surface layer expanded with a time constant of 6 ps.",

author = "Hikaru Sotome and Yosuke Azuma and Sho Asami and Matsushima, {Shin Ichi} and Shinji Kajimoto and Hiroshi Fukumura",

note = "Publisher Copyright: {\textcopyright} 2015 The Chemical Society of Japan.",

year = "2015",

doi = "10.1246/cl.150232",

language = "English",

volume = "44",

pages = "961--963",

journal = "Chemistry Letters",

issn = "0366-7022",

publisher = "The Chemical Society of Japan",

number = "7",

}

TY - JOUR

T1 - Ultrafast dynamics of photoexcited gold nanostructures on mica substrates probed by transient absorption spectroscopy and time-resolved x-ray diffraction

AU - Sotome, Hikaru

AU - Azuma, Yosuke

AU - Asami, Sho

AU - Matsushima, Shin Ichi

AU - Kajimoto, Shinji

AU - Fukumura, Hiroshi

PY - 2015

Y1 - 2015

N2 - Gold nanostructures deposited on mica were excited with 400-nm sub-ps light pulses. Sub-ps transient absorption spectroscopy showed that excited hot electrons in the gold nanostructures decayed with a time constant of 13 ps through electron-phonon coupling in the nanostructures. Sub-ps time-resolved X-ray diffraction revealed that the (0010) mica lattice constant in a 1.7 μm thick surface layer expanded with a time constant of 6 ps.

AB - Gold nanostructures deposited on mica were excited with 400-nm sub-ps light pulses. Sub-ps transient absorption spectroscopy showed that excited hot electrons in the gold nanostructures decayed with a time constant of 13 ps through electron-phonon coupling in the nanostructures. Sub-ps time-resolved X-ray diffraction revealed that the (0010) mica lattice constant in a 1.7 μm thick surface layer expanded with a time constant of 6 ps.

UR - http://www.scopus.com/inward/record.url?scp=84938907166&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84938907166&partnerID=8YFLogxK

U2 - 10.1246/cl.150232

DO - 10.1246/cl.150232

M3 - Article

AN - SCOPUS:84938907166

SN - 0366-7022

VL - 44

SP - 961

EP - 963

JO - Chemistry Letters

JF - Chemistry Letters

IS - 7

ER -

Ultrafast dynamics of photoexcited gold nanostructures on mica substrates probed by transient absorption spectroscopy and time-resolved x-ray diffraction

Abstract

Access to Document

Other files and links

Fingerprint

Cite this